JP5204190B2 - Cooking equipment - Google Patents

Description

  The present invention relates to a cooking apparatus that heats and cooks a cooking container containing an object to be cooked with a heating source.

  In a cooking apparatus including a gas burner that heats a cooking container containing an object to be cooked, a temperature sensor that detects a temperature of the bottom of the cooking container, and a control unit that controls combustion of the gas burner, the control unit includes a temperature sensor Based on the detection result, a state in which the temperature rise of the object to be cooked is almost eliminated is determined as an equilibrium state, and an equilibrium temperature (eg, 100 ° C.) is calculated. Based on this equilibrium temperature, an automatic fire extinguishing temperature (eg, equilibrium temperature + 20 ° C.) = 120 ° C.), and as shown by the phantom line in the graph of FIG. 5, the gas burner is automatically extinguished when the detected temperature rises and reaches the automatic extinguishing temperature before the cooking is completed and the detected temperature rises. A device that performs such control is known (Patent Document 1).

  By the way, normally, when the pressure cooker has an internal temperature higher than 100 ° C. and cooking is performed by the pressure cooker with the gas cooker in which the flame hole of the gas burner is directed outward, as shown in the graph of FIG. After the equilibrium state (first equilibrium state: about 100 ° C.) similar to that of a normal pan continued for a while, the temperature tended to rise to the second equilibrium state (about 120 ° C.).

  Therefore, in the cooking apparatus described in Patent Document 1, as shown in FIG. 6, the control unit also includes a first automatic fire extinguishing temperature corresponding to the first equilibrium state and a second automatic fire extinguishing temperature corresponding to the second equilibrium temperature. Is set. Specifically, first, when the pan is in the first equilibrium state, the equilibrium temperature (for example, 100 ° C.) is determined based on the detected temperature at that time, and the first automatic fire extinguishing temperature is set to the equilibrium temperature + 20 ° C. = 120 ° C. Set to. And when it has risen until it exceeds the equilibrium temperature + 10 ° C. within a predetermined time after becoming the first equilibrium state, the control unit determines that cooking is performed with the pressure cooker, In order to prevent the gas burner from being extinguished at the first automatic extinguishing temperature, the second automatic extinguishing temperature is set to the equilibrium temperature + 30 ° C. = 130 ° C.

  Since the automatic fire extinguishing temperature is set in two stages in this way, when cooking with a normal pan, it can be handled only by the first automatic fire extinguishing temperature, and when cooking with a pressure cooker, the first automatic fire extinguishing temperature. Since the automatic fire extinguishing control is performed at the second automatic fire extinguishing temperature that is higher than the temperature, the gas burner can be prevented from being prematurely cut when cooking with the pressure cooker.

JP-A-6-296552

  By the way, in order to increase the thermal efficiency of the gas burner, there is a gas stove in which the angle of the flame hole of the gas burner is set so that the flame faces upward. When cooking with such a gas burner using a pressure cooker, it has become clear that the two-stage equilibrium state described above does not appear. Therefore, in the method of setting the two-stage equilibrium state as in Patent Document 1, when a pressure cooker is used, a low automatic fire extinguishing temperature is set as in the case of using a normal cooker. However, there is a problem that the gas burner is prematurely cut out with insufficient. In addition, when heating highly viscous foods such as cold curry and stew even in a normal pan, it is difficult for the heat of the food in the pan to be transmitted to the temperature sensor through the pan, and as a result, the food in the pan is cooked. There is a problem that the gas burner is prematurely cut while the material is not sufficiently heated.

  The present invention has been made in view of the above circumstances, sets an appropriate automatic fire extinguishing temperature (heating suppression temperature) regardless of the type of the heating container and the content of the cooking object, and the cooking object does not burn and is heated. It is an object of the present invention to provide a cooking device that can cook food to be cooked satisfactorily without causing the portion to be cut quickly.

The present invention includes a heating source that heats a cooking container containing an object to be cooked, cooking container temperature detection means that is provided in contact with the bottom of the cooking container and detects the temperature of the cooking container, and heating based on the detected temperature. In a cooking apparatus comprising a control means for controlling the heating power of the source and a timer for measuring the heating time,
The control means includes
An equilibrium state determination unit that determines an equilibrium state based on the rate of increase of the detected temperature detected every predetermined time in the predetermined time;
In the equilibrium state determination unit, an equilibrium temperature determination unit that determines the equilibrium temperature based on the detected temperature when it is determined that the equilibrium state has been entered,
When the equilibrium temperature is determined, the initial heating suppression temperature that is set higher than the equilibrium temperature and limits the heating power of the heating source is calculated, and after determining the initial heating suppression temperature, in the equilibrium state determination unit When it is determined that the equilibrium state is maintained every elapse of a predetermined time, an updated heating suppression temperature obtained by adding a temperature increasing at a predetermined rate to the initial heating suppression temperature is calculated for each elapse of the predetermined time. A heating suppression temperature calculation unit,
A heating control unit that suppresses the heating power of the heating source when the detected temperature after determining the equilibrium temperature reaches the initial heating suppression temperature or when the detected temperature reaches the latest updated heating suppression temperature is provided.

  With such a configuration, the initial heating suppression temperature is set based on the equilibrium temperature, and after the initial heating suppression temperature is set, the initial heating suppression temperature is gradually increased every time a predetermined time elapses. An updated heating suppression temperature is calculated, in which a temperature that increases at a predetermined rate is added to the heating suppression temperature, so use a pressure cooker for the heating container or cook a to-be-cooked product made of a highly viscous liquid Even if the food to be cooked is heated sufficiently, an appropriate heating suppression temperature is set so that heating is suppressed, the food to be cooked does not burn, and the cooked portion is good without the heating part being cut quickly. Can be cooked in the heat.

  Further, in the cooking apparatus according to the present invention, the heating suppression temperature calculation unit calculates the updated heating suppression temperature when the equilibrium state determination unit determines that the equilibrium state is due to an increase within a predetermined temperature range, and calculates the predetermined temperature. It is preferable that the renewal heating suppression temperature is not calculated when it is determined that the equilibrium state is not an increase within the range.

  With such a configuration, the renewed heating suppression temperature is calculated only in the equilibrium state where the temperature rises slowly, such as when cooking with a pressure cooker with a high thermal efficiency gas burner, as in the case of boiling water Since it is possible not to calculate the updated heating suppression temperature in an equilibrium state in which there is almost no temperature change, it is possible to set a more appropriate heating suppression temperature according to the type of the heating container and its contents.

  Moreover, in the cooking apparatus which concerns on this invention, it is preferable that a heating suppression temperature calculation part is comprised so that update heating suppression temperature may be calculated, when detection temperature exists in the range which does not exceed the upper limit threshold value with respect to equilibrium temperature.

  With such a configuration, even if an equilibrium state due to a gradual temperature rise is determined by the equilibrium state determination unit, if the detected temperature exceeds the upper limit threshold for the equilibrium temperature, the renewal heating suppression temperature is not calculated. Since the high-temperature renewal heating suppression temperature is not set, it is possible to prevent the pan from being burnt.

  According to the cooking apparatus of the present invention, after the equilibrium temperature and the initial heating suppression temperature are set, the updated heating suppression temperature is calculated so that the heating suppression temperature gradually increases every time a predetermined time elapses. Therefore, regardless of the type of the heating container and the content of the cooking object, an appropriate heating suppression temperature is set at which excessive heating is suppressed after the cooking object is sufficiently heated. Therefore, the food to be cooked can be cooked satisfactorily without the food being cooked and without the heating part being cut quickly.

It is a front view which shows the whole structure of the gas stove which concerns on embodiment of this invention. It is a block diagram which shows the structure of the control apparatus of the gas stove which concerns on embodiment of this invention. It is a flowchart explaining the action | operation of the gas stove which concerns on this embodiment. It is a graph which shows the relationship of elapsed time-detected temperature at the time of cooking using a pressure cooker with the gas stove which the flame of the gas burner which concerns on this embodiment faces upwards. It is a graph which shows the relationship of elapsed time-detection temperature at the time of cooking using a normal pan with the gas stove which the flame of the conventional gas burner turns outward. It is a graph which shows the relationship of elapsed time-detection temperature at the time of cooking using a pressure cooker with the gas stove from which the flame of the conventional gas burner turns outward.

  FIG. 4 is a graph showing the relationship between the elapsed time and the detected temperature when cooking is performed using a pressure cooker with a high-efficiency gas stove in which the flame of the gas burner according to the embodiment of the present invention is directed upward.

As shown in the graph of FIG. 4, the bottom temperature of the pressure cooker continues to rise rapidly until the internal temperature approaches 120 ° C. (rises to the temperature T _{S in} the graph of FIG. 4), and the internal temperature approaches 120 ° C. Then, the temperature rise rate at the bottom of the pan tends to be gentle (after the time corresponding to _TN-6 in the curve of the graph of FIG. 4).

  This is because the temperature sensor is affected by the flame of the gas burner even when the temperature of the cooking object in the pressure cooker is in an equilibrium state, and the thickness of the bottom of the pressure cooker is thick, so This is probably because the temperature at the bottom of the pan rises slowly due to the fact that it is difficult for heat to pass through the pan.

  In this way, the temperature at the bottom of the pressure cooker when cooked with a highly efficient gas stove rises greatly until the internal temperature reaches around 120 ° C, and gradually rises when the internal temperature enters an equilibrium state. Thus, the first equilibrium state that becomes equilibrium when the pan bottom temperature is close to 100 ° C. does not appear, and the equilibrium state is not reached until the pan bottom temperature reaches about 120 ° C. Therefore, in the automatic fire extinguishing temperature setting method used in the conventional cooking apparatus, the automatic fire extinguishing temperature when the equilibrium state is determined is set to, for example, equilibrium temperature + 20 ° C. = 140 ° C.

  However, since the pressure cooker has a thick pan bottom as described above, it is difficult for the heat of the cooking object in the pan to be transmitted to the temperature sensor through the pan, and the temperature sensor is also affected by the flame of the gas burner. Even if the temperature of the food to be cooked enters an equilibrium state, the temperature at the bottom of the pan gradually rises.

  Therefore, even if the cooking object in the pressure cooker is not fully heated, the temperature at the bottom of the pot reaches the automatic fire extinguishing temperature, the gas burner is automatically extinguished, and the cooking object in the pot is not heated enough. In some cases, the gas burner may be prematurely cut.

  On the other hand, when cooking in a normal pan with a highly efficient gas burner with the flame facing upward, when the temperature in the pan is in an equilibrium state around 100 ° C, the temperature at the bottom of the pan is also around 100 ° C, It has been confirmed that there is almost no temperature change during the state. However, when cooking highly viscous ingredients such as cold curry or stew with a normal pan instead of a pressure cooker, it is difficult for the heat of the cooked food in the pan to be transmitted to the temperature sensor through the pan. Even if enters the equilibrium state, the temperature at the bottom of the pan tends to rise slowly. Therefore, in this case as well, when the automatic fire extinguishing temperature is set to, for example, 100 ° C. + 20 ° C. = 120 ° C., the gas burner may be prematurely cut while the cooking object in the pan is not sufficiently heated.

  The present invention sets an appropriate automatic fire extinguishing temperature (heating suppression temperature) in view of the characteristics when the cooking apparatus having the above-described high-efficiency gas burner is used, regardless of the type of the heating container and the content of the food to be cooked. The cooked food can be cooked satisfactorily without causing the cooked product to burn and without causing the heating section to be cut quickly.

Below, the cooking device concerning the embodiment of the present invention is explained, referring to an accompanying drawing.
As shown in FIG. 1, the gas stove 1 has a rectangular box-like stove body 10, and the top plate on the top surface of the stove body 10 faces a gas burner 11 that serves as a heating source and two ports for arranging five virtues 12 ( A plurality of stove portions 13 are provided.

  A pan bottom temperature sensor 14 corresponding to the cooking container temperature detecting means of the present invention is provided at the center of each stove 13 so that the heat sensitive part at the tip contacts the bottom of the cooking container A such as a pan to detect the cooking container bottom temperature. It has been. The pan bottom temperature sensor 14 is supported by the stove body 10 so as to be movable up and down.

  On the front part of the stove body 10, there are provided a fire extinguishing button 2 for making the gas burner 11 of each stove part 13 extinguish, and a thermal power adjusting lever 3 for adjusting the thermal power of the gas burner 11 of each stove part 13. . Although not shown, the point fire extinguishing button 2 and the thermal power adjusting lever 3 are connected between a gas pipe and a gas burner 11 and connected to an instrument plug for controlling gas supply from the gas pipe to the gas burner 11.

  Although the appliance plug is not shown in the figure, an electromagnetic safety valve driven by the operation of the fire extinguishing button 2 and the heating power adjustment lever 3, an original gas valve, and a gas amount adjustment are provided in a valve housing in which an internal gas passage is formed. The needle valve is accommodated, and the gas introduced into the internal passage is sent to the gas burner 11.

  In addition, as shown in the block diagram of FIG. 2, the gas supply path between the instrument plug and the gas burner 11 is opened by the ignition operation of the fire extinguishing button 2, and thereafter the opening and closing control is performed by the control device 6 described later. A gas shut-off valve 4 and a flow rate control valve 5 whose flow rate is controlled by a control device 6 for temperature control are provided.

  As shown in FIGS. 1 and 2, the gas stove 1 includes a control device 6 configured by a microcomputer or the like that controls the operation of the gas stove 1. The control device 6 includes a heating control unit 61, which adjusts the heating power of the gas burner 11 by adjusting the opening degree of the flow control valve 5 based on the detection result of the pan bottom temperature sensor 14, Control is performed such that the gas shut-off valve 4 is closed to extinguish the fire. Note that the temperature detected by the pan bottom temperature sensor 14 every predetermined time is stored in a memory provided in the control device 6.

Further, the control device 6 determines whether the cooking object in the cooking container A is in an equilibrium state based on the rate of increase of the detected temperature detected by the pan bottom temperature sensor 14 within a predetermined time. part 62, the equilibrium state determination section 62 equilibrium temperature determining portion 63 determines the equilibrium temperature T _H based on the detected temperature when it is determined to have entered a state of equilibrium by, and, during cooking too elevated temperature from equilibrium In order to prevent scorching and ignition from occurring, the automatic extinguishing temperature (the initial heating suppression temperature and the renewal heating suppression temperature of the present invention) that automatically extinguishes the gas burner 11 before these problems occur is calculated. An automatic fire extinguishing temperature calculating unit 64 (a heating suppression temperature calculating unit of the present invention) is provided.

  The equilibrium state determination unit 62 calculates the rate of increase within a predetermined time based on the detected temperature of the cooking container A detected by the pan bottom temperature sensor 14 every predetermined time (every 15 seconds in the present embodiment). Based on this rate of increase, it is determined whether or not an equilibrium state has been reached.

First, the equilibrium state determination unit 62 determines whether or not the equilibrium state has been entered by determining whether or not the following condition 1 is satisfied five times in succession and condition 2 is satisfied.
Condition 1: −2 ° C. ≦ T _N −T _N−2 ≦ + 2 ° C.
However, T _N : The latest detected temperature detected at the time of judgment
T _N-2 : Two data before T _N Condition 2: −5 ° C. ≦ T _E −T _S ≦ + 5 ° C.
However, T _E : T _N when condition 1 is satisfied for the fifth time
T _S : T _N-2 when condition 1 is first satisfied

In the graph of FIG. 4, the detected temperature when it is determined that the equilibrium state has been entered is represented as the latest detected temperature T _N , and the detected temperature T _N after this is 15 seconds in FIG. 4. Each of them is represented by T _{N + 1} , T _{N + 2} , T _{N + 3} . Also, _TN in FIG. 4 indicates the detected temperature when it is determined that the equilibrium state has been entered and the condition 1 is satisfied for the fifth time, and _{TN-6 in} FIG. _TN-2 when 1 is satisfied is shown.

Equilibrium temperature determining section 63, in the equilibrium state determination section 62 determines the equilibrium temperature T _H based on the detected temperature when it is determined to have entered a state of equilibrium. In the present embodiment, the first detected temperature T _E after satisfying the condition 1 is determined as the equilibrium temperature T _H.

Then, after it is determined that the equilibrium state has been entered, the equilibrium state determination unit 62 determines whether or not the above condition 1 and the following conditions 3, 4 and 5 are satisfied every 15 seconds. Thus, it is determined whether or not the equilibrium state due to the gradual temperature rise is continued.
Condition 3: T _N −T _H ≦ + 10 ° C.
However, T _N : The latest detected temperature detected at the time of judgment
T _H : Equilibrium temperature Condition 4: T _N ≦ 140 ° C.
Condition 5: + 1 ° C ≦ T _N −T _N-5 ≦ + 4 ° C.
However, T _N-5 : Data five times before the latest detected temperature T _N

When the equilibrium temperature _TH is determined, the automatic fire extinguishing temperature calculation unit 64 calculates an initial automatic fire extinguishing temperature A ₀ (A ₀ = A _n (n = 0)) that is an initial heating suppression temperature of the present invention, After calculating the initial automatic fire extinguishing temperature A ₀ , every time a predetermined time elapses (every 15 seconds), the detected temperature T _N sets the upper limit threshold (equilibrium temperature T _H + 10 ° C.) with respect to the equilibrium temperature T _H that is the condition 3 When it is determined that the equilibrium state that satisfies the condition 5 (+ 1 ° C. ≦ T _N −T _N−5 ≦ + 4 ° C.) is continued within the range not exceeding 140 ° C. of the condition 4 The updated automatic extinguishing temperature _An (n ≧ 1) that is the updated heating suppression temperature is calculated.

Here, n is the number of every 15 seconds from being determined equilibrium temperature T _H is, as shown in FIG. 4, n of the time the equilibrium temperature T _H is determined is zero, the initial automatic fire extinguishing The temperature A ₀ is calculated, and n = 1 when 15 seconds have elapsed from n = 0, and the updated automatic fire extinguishing temperature A ₁ is calculated. Both the initial automatic fire extinguishing temperature A ₀ and the updated automatic fire extinguishing temperature _An (n ≧ 1) are calculated based on the same equilibrium temperature T _H regardless of the detected temperature T _N.

The initial automatic fire extinguishing temperature A ₀ is higher than the equilibrium temperature T _H by a predetermined temperature, for example, set to the equilibrium temperature T _H + 30 ° C. (X ° C.). When the controller 6 detects that the temperature of the cooking container A has reached the initial automatic fire extinguishing temperature A ₀ before the update automatic fire extinguishing temperature _An (n ≧ 1) is calculated next, the pan bottom temperature sensor 14 detects the temperature. Controls to close the gas cutoff valve 4 and extinguish the gas burner 11.

The updated automatic fire extinguishing temperature _An (n ≧ 1) is calculated after the initial automatic fire extinguishing temperature A ₀ , and the detected temperature exceeds the upper limit threshold (equilibrium temperature T _H + 10 ° C.) with respect to the equilibrium temperature T _H of Condition 3. An equilibrium state that satisfies the condition 5 (+ 1 ° C. ≦ T _N −T _N−5 ≦ + 4 ° C.) every 15 seconds in the equilibrium state determination unit 62 within a range that is not more than 140 ° C. When it is determined, the temperature is calculated by adding a temperature increasing at a predetermined rate to the initial automatic fire extinguishing temperature A ₀ every 15 seconds.

Specifically, every 15 seconds as follows, while detection temperature T _N ≦ equilibrium temperature T _H + 10 ° C. and T _N ≦ 140 ° C., condition 5 (+ 1 ° C. ≦ T _N −T _N−5 ≦ When it is determined that the equilibrium state satisfies + 4 ° C., the updated automatic fire extinguishing temperature _An (n ≧ 1) is calculated.
A ₁ = A ₀ + α (Duration from T _S when A ₁ is determined [t ₀ + t ₁ ] / Duration from T _S when A ₀ is determined [t ₀ ])
・
・
・
A _n = A ₀ + α (Duration [T ₀ + t _n ] from T _S when A _n is fixed / Duration [t ₀ ] from T _S when A ₀ is fixed)
Where α: coefficient (1.25 in this embodiment),
t ₀ = 90 seconds, t ₁ = 15 seconds, t _n = 15 × n seconds

Therefore, the updated automatic fire extinguishing temperature _An (n ≧ 1) is updated so that the temperature gradually increases every 15 seconds as shown in FIG.

Note that after the initial automatic fire extinguishing temperature A ₀ is set and before the updated automatic fire extinguishing temperature _An (n ≧ 1) is calculated, the condition 5: + 1 ° C. ≦ T _N −T _N−5 ≦ + 4 ° C. If the temperature is not satisfied and there is almost no temperature difference between the detected temperature after entering the equilibrium state and the equilibrium temperature, the automatic fire extinguishing temperature calculation unit 64 determines that the cooking container A being used is a normal pan. Thus, it is determined that the material to be cooked is a low-viscosity liquid material, and the control is performed to maintain the initial automatic fire extinguishing temperature A ₀ without calculating the renewal automatic fire extinguishing temperature _An (n ≧ 1).

Heating control unit 61 is further whether the detected temperature after determining the equilibrium temperature T _H reaches the initial automatic fire extinguishing temperature A _0, or, latest update the detected temperature after determining the equilibrium temperature T _H is updated When the automatic fire extinguishing temperature _An (n ≧ 1) is reached, the gas burner 11 is controlled to be extinguished.

The stove body 10 is also provided with a timer 7 for measuring the heating time, and the time measured by the timer 7 is output to the control device 6. Based on the time measured by the timer 7, the equilibrium temperature T _H , the initial automatic fire extinguishing temperature A _0, and the updated automatic fire extinguishing temperature _An (n ≧ 1) that are updated are obtained.

  Next, operation | movement of the gas burner 11 at the time of heating the cooking container A in the gas stove 1 of the said structure is demonstrated based on the flowchart of FIG.

First, as shown in the flowchart of FIG. 3, when the gas burner 11 is ignited, the equilibrium temperature determination unit 62 continuously detects the detected temperature at −2 ° C. ≦ T _N −T _N−2 ≦ + 2 ° C. It is then determined whether or not it is satisfied five times (step S1).

When the condition 1 is satisfied five times in succession, it is determined whether or not the detected temperature satisfies −5 ° C. ≦ T _E −T _S ≦ + 5 ° C. of the condition 2 (step S2). When Condition 1 is satisfied five times in succession and Condition 2 is satisfied (Yes in Step S2), the equilibrium state determination unit 62 determines that the equilibrium state has been entered, and the equilibrium temperature determination unit 63 , the detected temperature T to determine the equilibrium temperature T _H based on _E, and stored in a memory provided in the control device 6, in the automatic fire extinguishing temperature calculating section 64, the initial automatic fire extinguishing temperature when it is determined to have entered a state of equilibrium A ₀ = equilibrium temperature T _H + X ° C. is calculated (step S3).

When the equilibrium temperature T _H and the initial automatic fire extinguishing temperature A ₀ are calculated, it is next determined whether or not 15 seconds have elapsed since the previous temperature detection (step S4). If 15 seconds have not elapsed (No in step S4), it is determined whether or not the detected temperature T _N is equal to or higher than the initial automatic fire extinguishing temperature A ₀ (step S5). If the detected temperature T _N is equal to or higher than the initial automatic fire extinguishing temperature A ₀ (Yes in step S5), the gas burner 11 is automatically extinguished, and if it is lower (No in step S5), the process returns to step S4. If the updated automatic fire extinguishing temperature _An (n ≧ 1) is set after the initial automatic fire extinguishing temperature A ₀ is calculated, is the updated automatic fire extinguishing temperature _An (n ≧ 1) or higher? It is determined whether or not (step S5). Also in this case, when the temperature is equal to or higher than the latest updated automatic fire extinguishing temperature _An (n ≧ 1) (Yes in step S5), the gas burner 11 is automatically extinguished, and when it is lower (No in step S5), step S4. Return to.

If 15 seconds have elapsed in step S4 (Yes in step S4), it is determined whether or not the condition 1 of −2 ° C. ≦ T _N −T _N−2 ≦ + 2 ° C. is satisfied (step S6). When the condition 1 is not satisfied (No in Step S6), the detected temperature T _N is the initial automatic fire extinguishing temperature A ₀ or more, or the updated automatic fire extinguishing temperature _An (n ≧ 1) is set. In step S5, it is determined whether or not it is equal to or higher than the latest updated automatic fire extinguishing temperature _An (n ≧ 1). When the detected temperature T _N is _{equal to} or higher than the initial automatic fire extinguishing temperature A ₀ or the latest updated automatic fire extinguishing temperature _An (n ≧ 1) (Yes in step S5), the gas burner 11 is automatically extinguished or less. (No in step S5), the process returns to step S4.

If the condition 1 is satisfied in step S6 (Yes in step S6), it is determined whether or not the condition 3 T _N −T _H ≦ + 10 ° C. is satisfied (step S7). When the condition 3 is not satisfied (No in step S7), the detected temperature T _N is set to the initial automatic fire extinguishing temperature A ₀ or higher, or the updated automatic fire extinguishing temperature _An (n ≧ 1) is set. In step S5, it is determined whether or not it is equal to or higher than the latest updated automatic fire extinguishing temperature _An (n ≧ 1). When the detected temperature T _N is _{equal to} or higher than the initial automatic fire extinguishing temperature A ₀ or the latest updated automatic fire extinguishing temperature _An (n ≧ 1) (Yes in step S5), the gas burner 11 is automatically extinguished, and if it is less than (No in step S5), the process returns to step S4.

If the condition 3 is satisfied in step S7 (Yes in step S7), it is determined whether or not the condition 4 T _N ≦ 140 ° C. is satisfied (step S8). If the condition 4 is not satisfied (No in step S8), the detected temperature T _N is the initial automatic fire extinguishing temperature A ₀ or higher, or the updated automatic fire extinguishing temperature _An (n ≧ 1) is set. In step S5, it is determined whether or not it is equal to or higher than the latest updated automatic fire extinguishing temperature _An (n ≧ 1). When the detected temperature T _N is _{equal to} or higher than the initial automatic fire extinguishing temperature A ₀ or the latest updated automatic fire extinguishing temperature _An (n ≧ 1) (Yes in step S5), the gas burner 11 is automatically extinguished, and if it is less than (No in step S5), the process returns to step S4.

If the condition 4 is satisfied in step S8 (Yes in step S8), it is determined whether or not the condition 5 + 1 ° C. ≦ T _N −T _N−5 ≦ + 4 ° C. is satisfied (step S9). . When the condition 5 is not satisfied (No in step S8), it is determined that the cooking container A is a normal pan and the food to be cooked is a low-viscosity liquid material, and the detected temperature T _N is the initial automatic fire extinguishing temperature. It is determined whether A ₀ or more (step S5). When the detected temperature T _N is equal to or higher than the initial automatic fire extinguishing temperature A ₀ (Yes in step S5), the gas burner 11 is automatically extinguished. If it is less (No in step S5), the process returns to step S4.

If the condition 5 is satisfied in step S9 (Yes in step S9), the updated automatic fire extinguishing temperature _An (n) is calculated according to the above-described equation of A _n = A ₀ + α ((t ₀ + t _n ) / t ₀ ). ≧ 1) is calculated (step S10).

When the updated automatic fire extinguishing temperature _An (n ≧ 1) is calculated, it is determined whether or not the detected temperature _TN is _{equal to} or higher than the updated automatic fire extinguishing temperature _An (n ≧ 1) (step S11). . If the detected temperature T _N is equal to or higher than the updated automatic fire extinguishing temperature _An (n ≧ 1) (Yes in step S11), the gas burner 11 is automatically extinguished, and if it is lower (No in step S11), the process proceeds to step S4. Return.

According to this embodiment, when the cooking vessel A is a pressure cooker, the equilibrium temperature T _H is set at a temperature of pan bottom when the temperature of the food in the pressure cooker is determined to have entered a state of equilibrium . In the case of normal pot also equilibrium temperature T _H is set at a temperature of pan bottom when it is determined to have entered a state of equilibrium (about 100 ° C. lower than the pressure cooker). When the equilibrium temperature T _H based on the type of the cooking container A is set, the initial automatic fire extinguishing temperature A ₀ is calculated based on the set equilibrium temperature T _H. Then, after the initial automatic fire extinguishing temperature A ₀ is calculated, in the equilibrium state where the temperature gradually rises to satisfy the condition 5, the updated automatic fire extinguishing temperature _An (n ≧ 1) is set every 15 seconds. In the case of an equilibrium state that is updated and does not satisfy the condition 5, the updated automatic fire extinguishing temperature _An (n ≧ 1) is not updated. Furthermore, even when the detected temperature T _N exceeds the equilibrium temperature T _H + 10 ° C. or becomes 140 ° C. or higher, the updated automatic fire extinguishing temperature _An (n ≧ 1) is not updated. By controlling the combustion of the gas burner 11 in this way, when the food to be cooked is heated by the pressure cooker, the food to be cooked is heated well without being burnt and without being burned out quickly. Can be cooked.

In addition, when heating a liquid material with low viscosity in a normal pan, the equilibrium state is maintained with almost no temperature change after entering the equilibrium state. After the extinguishing temperature A ₀ is calculated, the updated automatic extinguishing temperature A _n (n ≧ 1) is not updated, and the initial automatic extinguishing temperature A ₀ is maintained and the automatic extinguishing control is performed. An object to be cooked can be cooked well without burning the object. Furthermore, when a highly viscous liquid such as curry or stew is heated in a normal pan, as in the case of a pressure cooker, 15 seconds in the case of an equilibrium state where the temperature gradually rises to satisfy the condition 5. The updated automatic fire extinguishing temperature _An (n ≧ 1) is updated every time it elapses. Therefore, the food to be cooked can be cooked satisfactorily without burning the food to be cooked and without the gas burner 11 being cut quickly.

The cooking apparatus according to the present invention is not limited to the above embodiments, and various design changes can be made.
For example, in the present embodiment, T _E for determining the equilibrium temperature T _H is the detection temperature T _N when the condition 1 is satisfied for the fifth time continuously, but the equilibrium temperature T _H is the third time, The detection temperature _TN when the condition 1 is satisfied at an appropriate number of times such as the first time can be used.
In addition, the predetermined time for determining the equilibrium state is set to 15 seconds in this embodiment, but can be set as appropriate.
In the present embodiment, the equilibrium temperature T _H is the detection temperature T _{N that} is the fifth consecutive time after first satisfying the condition 1, but it can also be the detection temperature T _N that first satisfies the condition 1; if between the detected temperature T _N satisfying the condition 1 until the detected temperature T _N consecutive fifth, any detected temperature T _N may be the equilibrium temperature T _H.

Furthermore, in this embodiment, the initial automatic fire extinguishing temperature A ₀ and the updated automatic fire extinguishing temperature _An (n ≧ 1) are set, and these initial automatic fire extinguishing temperature A ₀ or the latest updated automatic fire extinguishing temperature _An (n ≧ n). The gas burner is automatically extinguished when the pan bottom temperature reaches 1), but automatically when the pan bottom temperature reaches the initial heating suppression temperature A ₀ or the latest updated heating suppression temperature _An (n ≧ 1). In addition, the gas burner may be controlled so that the heating power is low.

1 Gas stove 10 Stove body 11 Gas burner (heating source)
12 Gotoku 13 Stove section 14 Pan bottom temperature sensor (cooking vessel temperature detection means)
2 point fire extinguishing button 3 thermal power control lever 4 gas shutoff valve 5 flow rate control valve 6 control device (control means)
61 Heating control unit 62 Equilibrium state determination unit 63 Equilibrium temperature determination unit 64 Automatic fire extinguishing temperature calculation unit (heating suppression temperature calculation unit)
7 Timer A Cooking container

Claims (3)

A heating source for heating the cooking container containing the food to be cooked, a cooking container temperature detecting means for detecting the temperature of the cooking container provided in contact with the bottom of the cooking container, and a heating power of the heating source based on the detected temperature In a cooking apparatus comprising a control means for controlling the heating and a timer for measuring the heating time,
The control means includes
An equilibrium state determination unit that determines an equilibrium state based on the rate of increase of the detected temperature detected every predetermined time in the predetermined time;
In the equilibrium state determination unit, an equilibrium temperature determination unit that determines the equilibrium temperature based on the detected temperature when it is determined that the equilibrium state has been entered,
When the equilibrium temperature is determined, the initial heating suppression temperature that is set higher than the equilibrium temperature and limits the heating power of the heating source is calculated, and after determining the initial heating suppression temperature, in the equilibrium state determination unit When it is determined that the equilibrium state is maintained every elapse of a predetermined time, an updated heating suppression temperature obtained by adding a temperature increasing at a predetermined rate to the initial heating suppression temperature is calculated for each elapse of the predetermined time. A heating suppression temperature calculation unit,
A cooking apparatus comprising: a heating control unit configured to suppress a heating power of a heating source when the detected temperature after determining the equilibrium temperature reaches the initial heating suppression temperature or the detected temperature reaches the latest updated heating suppression temperature. The cooking device according to claim 1,
The heating suppression temperature calculation unit calculates the updated heating suppression temperature when the equilibrium state determination unit determines that the equilibrium state is due to an increase within a predetermined temperature range, and determines that the equilibrium state is not an increase within the predetermined temperature range. The cooking device does not calculate the renewal heating suppression temperature. The cooking apparatus according to claim 1 or 2,
The heating suppression temperature calculation unit is a cooking device that calculates an updated heating suppression temperature when the detected temperature is within a range that does not exceed an upper limit threshold for the equilibrium temperature.

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